[INFO] fetching crate closure_manager 0.1.0...
[INFO] testing closure_manager-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate closure_manager 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate closure_manager 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate closure_manager 0.1.0
[INFO] tweaked toml for crates.io crate closure_manager 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate closure_manager 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24386db5f01850b9211cacd8d7ca07d337b8caed251555289d97f1b0103f674e
[INFO] running `Command { std: "docker" "start" "-a" "24386db5f01850b9211cacd8d7ca07d337b8caed251555289d97f1b0103f674e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24386db5f01850b9211cacd8d7ca07d337b8caed251555289d97f1b0103f674e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24386db5f01850b9211cacd8d7ca07d337b8caed251555289d97f1b0103f674e", kill_on_drop: false }`
[INFO] [stdout] 24386db5f01850b9211cacd8d7ca07d337b8caed251555289d97f1b0103f674e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c14e7cc5a0ac45fa93a639cd6f6add9d2ef4c6d7949c915335dee6f17efa834
[INFO] running `Command { std: "docker" "start" "-a" "8c14e7cc5a0ac45fa93a639cd6f6add9d2ef4c6d7949c915335dee6f17efa834", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure_manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "8c14e7cc5a0ac45fa93a639cd6f6add9d2ef4c6d7949c915335dee6f17efa834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c14e7cc5a0ac45fa93a639cd6f6add9d2ef4c6d7949c915335dee6f17efa834", kill_on_drop: false }`
[INFO] [stdout] 8c14e7cc5a0ac45fa93a639cd6f6add9d2ef4c6d7949c915335dee6f17efa834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bacc1c622542eb350c623220063fac70c00e598241351ea1423e01f7b7bc6b8d
[INFO] running `Command { std: "docker" "start" "-a" "bacc1c622542eb350c623220063fac70c00e598241351ea1423e01f7b7bc6b8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure_manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> tests.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]  --> tests.rs:7:45
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]   |                                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_x` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]  --> tests.rs:7:55
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]   |                                                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> tests.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests.rs:16:60
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> tests.rs:15:45
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> tests.rs:15:55
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id1`
[INFO] [stdout]   --> tests.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let id1 = list.add(slot_01);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> tests.rs:27:45
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests.rs:27:56
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> tests.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> tests.rs:26:55
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> tests.rs:37:49
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests.rs:37:60
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> tests.rs:36:45
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> tests.rs:36:55
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id1`
[INFO] [stdout]   --> tests.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let id1 = list.add(slot_01);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> tests.rs:48:49
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests.rs:48:60
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> tests.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> tests.rs:47:55
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id1`
[INFO] [stdout]   --> tests.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let id1 = list.add(slot_01);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> tests.rs:61:49
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> tests.rs:61:60
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> tests.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> tests.rs:60:55
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id1`
[INFO] [stdout]   --> tests.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let id1 = list.add(slot_01);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "bacc1c622542eb350c623220063fac70c00e598241351ea1423e01f7b7bc6b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacc1c622542eb350c623220063fac70c00e598241351ea1423e01f7b7bc6b8d", kill_on_drop: false }`
[INFO] [stdout] bacc1c622542eb350c623220063fac70c00e598241351ea1423e01f7b7bc6b8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57e22c9b346de4c4bfd0f9a7f6941bdd263e55055d612eaba712dd73c76ad803
[INFO] running `Command { std: "docker" "start" "-a" "57e22c9b346de4c4bfd0f9a7f6941bdd263e55055d612eaba712dd73c76ad803", kill_on_drop: false }`
[INFO] [stderr] warning: found module declaration for lib.rs
[INFO] [stderr]  --> tests.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod lib;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: lib.rs is the root of this crate's library target
[INFO] [stderr]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stderr]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]  --> tests.rs:7:45
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]   |                                             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider using `_x` instead
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]  --> tests.rs:7:55
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]   |                                                       ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> tests.rs:16:49
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> tests.rs:16:60
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]   --> tests.rs:15:45
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> tests.rs:15:55
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id1`
[INFO] [stderr]   --> tests.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let id1 = list.add(slot_01);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> tests.rs:27:45
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> tests.rs:27:56
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]   --> tests.rs:26:45
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> tests.rs:26:55
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> tests.rs:37:49
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> tests.rs:37:60
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]   --> tests.rs:36:45
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> tests.rs:36:55
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id1`
[INFO] [stderr]   --> tests.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let id1 = list.add(slot_01);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> tests.rs:48:49
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> tests.rs:48:60
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]   --> tests.rs:47:45
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> tests.rs:47:55
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id1`
[INFO] [stderr]   --> tests.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let id1 = list.add(slot_01);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> tests.rs:61:49
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> tests.rs:61:60
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut slot_02 = Slot::new(Box::new(||{let y = 5; let i = 0;}));
[INFO] [stderr]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]   --> tests.rs:60:45
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> tests.rs:60:55
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let slot_01 = Slot::new(Box::new(||{let mut x = 0;x+= 2;}));
[INFO] [stderr]    |                                                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id1`
[INFO] [stderr]   --> tests.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let id1 = list.add(slot_01);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_id1`
[INFO] [stderr] 
[INFO] [stderr] warning: `closure_manager` (test "tests") generated 27 warnings (run `cargo fix --test "tests" -p closure_manager` to apply 14 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests lib.rs (/opt/rustwide/target/debug/deps/closure_manager-366f2835792a34c2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests.rs (/opt/rustwide/target/debug/deps/tests-6520d60986f74291)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test exec_all ... ok
[INFO] [stdout] test build ... ok
[INFO] [stdout] test test_inserts ... ok
[INFO] [stdout] test exec_err ... ok
[INFO] [stdout] test remove ... ok
[INFO] [stderr]    Doc-tests closure_manager
[INFO] [stdout] test exec_ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "57e22c9b346de4c4bfd0f9a7f6941bdd263e55055d612eaba712dd73c76ad803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e22c9b346de4c4bfd0f9a7f6941bdd263e55055d612eaba712dd73c76ad803", kill_on_drop: false }`
[INFO] [stdout] 57e22c9b346de4c4bfd0f9a7f6941bdd263e55055d612eaba712dd73c76ad803